Calculating-machine.



No. 832,666. PATENTED OCT. 9, 1906.

G. HAMANN.

CALCULATING MACHINE.

APPLICATION FILED MAR. 28, 19136. 7

6 SHEETS-SHEET l.

lire/2502': lu'g'rtelamizn PATENTED OCT. 9, 1906.

O. HAMANN. CALCULATING MACHINE APPLIGATION FILED MAE.28,1905.

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VPATENTED 001?. 9, 1906.

0. HAMANN. v CALCULATING MACHINE.

APPLIUATION FIL'ED MAR.28, 1905.

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c. HAMANN. I CALCULATING MACHINE. APPLICATION FILED IAR. 28,1905.

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,CHRISTEL HAMANN, OF FRIEDENAU, NEAR BERLIN, GERMANY.

CALCULATING-MACHINE.

Specification of Letters Patent.

Patent ed Oct. 9, 1906.

Application filed March 28, 1.966. Serial No. 252.516.

To all whom it may concern:

Be it known that I, CHRisTEnHAMANN, engineer, a citizen of Germany, anda resident of Friedenau, near Berlin, Germany, (whose post-officeaddress is Hedwigstrasse 17 have invented certainnew and usefulImprovements in Calculating-Machines, of which the following is aspecification.

My invention relates to an improved calculating-machine.

In prior calculators toothed wheels'having adjustable gear-teeth or thelike have been employed to give the result. Another wellknown means forobtaining the part products is the stepped roller first used by Leibnitzand consisting of a cylind er with teeth of dif- According to myinvention I dispense with such devices and use instead a single diskprovided with teeth disposed stepwise. The toothed wheels which give thepart products can be caused to move redially of this disk and can berotated by it corresponding to the position occupied.

By reason of the circular arrangement of the toothed wheels, renderednecessary owing to the employment of a disk, the parts of the machinecan be compactly located in a very small space. The machine is thus verylight and readily partible,- being well adapted for the pocket.

The machine can be used to calculate any number of figures, as thecircular arrangement of the parts imposes no limit such as there is inthe case of machines with figures located one beside the other.

One form of construction of the machine is shown in the accompanyingdrawings.

Figure 1 is an elevation and part section of the machine fixed on astand ready for use. Fig. 2 is a plan of the actual machine, thecrank-handle being shown slightly turned out of the position of rest anda portion of the peripheral ring being broken away to display underlyingparts. ig. 3 is a vertical section on the line a c of Figs. 2 and 4. vFig. 4 is a horizontal section on the line b b of Figs. 3 and 5. Fig. 5is a vertical'section on the line 0 c of Figs. 2 and 4. Fig. 6 is ahorizontal section on the line d d of Figs. 3 and 5, parts being brokenaway. Fig. 7 is a plan of the actuating-disk, some of the parts actuatedthereby being shown in dotted lines. Fig. 8 is a vertical section on theline 6 e of Fig. 5, showing the rotations-indicating device inelevation. Fig. 9 is a vertical section on the line f f of Fig. 7,showing the carrying mechanismthat is, the mechanism for transferringthe shaft.

,means of'the slide.

from a lower to a higher denomination which in the succeedingspecification and in the claims should be termed as carrying device.Fig. 10 is a detail view showing one ofthe sleeves and the cooperatingstud on the-actuatingdisk. Fig. 11 is a vertical section on the line g gof Fig. 6, showin the operation of the device for resetting thefigure-wheels to zero. Fig. 12 is a detail view showing two of thewheels for the device for resetting the figure wheels to zero and thetoothed rims operating them. Figs. 13 and 14 are detail views showingthe method of actuation of the hellhammer in different kinds ofcalculations.

The small arrow pointing to the lines on which sections are takenindicate the direction in which the section is seen.

The machine consists of the two main parts 1 and 2, which are fiat,open, round boxsha ed cases, Figs. 1, 3, and 5. The case 1 is 0 largerdiameter than the case 2 and has and 5, Figs. 2 and 6-. The cases arealso perforatedcentrally to receive the shaft 6, which turns freelytherein. The case 2 is superposed iii-inverted position on the case 1,its

edge resting'on the flange 3.

The face of the case 2 is rovided with radial slots 7, Fig. 2, on eachsi e of which the digits 0 to 9 are inscribed,but in reversed order onthe two sides. In the case 2 below each slot 7 is mounted a shaft 8,Figs. 3 and 4, having a small wheel 9 at its outer end provided with tenteeth, in which a spring-detent 10 en a es, Fig. 4. Near the inner endof each 0 tie shafts 8 is mounted a pinwheel 11, the ins 12 of which actas sto s in a manner to e hereinafter described, Fi s. 3, 4, and 5. Onthe shaft 8 there is aFso keyed a ten-toothed wheel 13, with capabilityof sliding in the direction of length of In each slot 7 there works aslide having a knob 14 and pointers 15 16 for indicating the figures ofthe two columns inscribed on the slot edges opposite which it stands.The slide has also two small endent plates or cheeks 17, between whicthe wheel 13 lies, so that it can be slid along by The latter is held inposition in well-known manner b a fiat spring 14*. In the case 2 thereis also a shaft 8, located similarly to the shafts 8, Figs. 4 and 5.This shaft 8 likewise carries a toothed wheel 9 and pin-wheel 11, and,furthermore, a toothed wheel 18, located adjacent to the in-wheel 11 andturned with positive motion by the shaft, while at the same time beingcrank-han concentric circles.

capable of sliding to a slight'extent on it in lon 'tudinal direction. I1

he cooperating signal for the tens and the mechanism for use "in emloyin the machine for addition and multiplication or subtraction anddivision will be explained later.

In the case 1 there are likewise mounted shafts 19,- arran ed all roundat. distances. 9. art correspon ing to those between the s afts 8, Fi 6.Each shaft 19 has mounted on it imme 'ately below the flange 3 a disk orwheel 20, Figs. 3, 5, and 6, provided with the figures 0 to 9, whichfigures are visible through the apertures 4. On each shaft 19 there 1slikewise mounted fast a ten-toothed wheel 21, which meshes with thetoothed wheel 9 on the shafts 8 8. A second toothed wheel 22 is alsomounted on each shaft 19. These shafts 19 extend through the wall of thecase 1 and are provided with heads 23, by means of which the fi ures canbe set by hand in the a ertures 4, igs. 1 and 2.

Between t e shafts 19, which correspond to the shafts 8, further shafts24 are located in the case 1. carry disks 25, provided with figures 0'to 9. The disks 25 may conveniently be'of a different color to that ofthe disks 20 or be otherwise distinguished therefrom. Their ures arevisible through the apertures 5, Figs. 2, 5, and 6.' Each shaft 24 alsohas mounted on it two toothed wheels 26 27.

On the shaft'fi, which turns loosely in the bosses of the cases 1 2, anactuating-disk 28 is mounted fast. This disk can be rotated in-vdependentliy of the cases 1 2 by means of the 7. On thedisk 28 teeth 29are disposed in These teeth are arranged stepwise that is to say, in theinnermost circle there are nine teeth; in the next, eight, and so on,until at length in the'outermo'st circle there-is only one tooth. Theseteeth engage with the toothed wheels, 13 in a manner to be hereinafterdescribed.

.The 0 eration of the stop device near the 'center 0 the disk 28 and thecarrying device will be likewise described later.

In order to adjust the cases 1 2 relatively to each other, studs 30 areprovided on the flange 3 of-the case 1, Figs. (Sand 12, andcorresponding notches 31 furnished in the rim of the case 2 to receivethem, Figs. 1 and '4. The case- 1 is"also provided with a in 32, markedwith an arrow, Figs. 2, 3, and 6,

I and the case 2 can be so ad'usted that this arrow points to any desirefigure on the periphery of the case 2 inorder to indicate inwhichdenomination the calculations are beingmade;

Over the flange3 of the case 1, so far asit is not covered by the case2, there fits a ring 89,-.Figs. 1, 2, 3, provided with aperturescorresp'odding to the holes 4 5, Fig. 2, left-hand side, so thateitherthe holes 5 are covered These latter shafts likewise le 33 of theshaft 6, Figs. 3, 5, and

and figures visible throu h the holes 4, or vice versa;

secured to the case 1. The len th of the slot 90 is such that in the oneen'i position the holes 4 coincide with the perforations in the ring 89,Fig. 2, while in the other end position the holes 5 coincide therewith.The ring 89 can be adjusted by means of the knob 91, Figs. 1, 2. v I

As already stated, the shaft 6 is provided with a crank 33, which, owingto the provision of a spring-actuated detent 34, acting on aratchet-wheel 34, can only be turned in one direction. In order to holdthe handle 33 in its position of rest, a. spring-actuated pin 35 isprovided, Fig. 1, engaging in a hollow pin 36 on the case 2.

To revent the wheels 9 turning farther than lntended, owin to theirinertia on rapid rotation of the isk 28, whereby errors would be caused,the already-mentioned disk 11 with pins 12 are provided, Fig. 3. ()n thedisk 28, immediately behind the teeth 29 in the direction of rotation,there is located a segmental stop-bracket 37, Figs. 3, 7. This bracketis so arranged that when. the disk 28 is rotated it passes between thepins 12 of the disk- 11 and holds them for a short interval, whichnaturally means sto page of the wheels 9. Since the member 37 lies justbehind the teeth 29, the rotary motion on unduly rapid rotation of themachine will be at once stopped, so that even the slightest motion inexcess ofthat intended is prevented and er- The ring is s otted at 90,Figs. 1, 2, and into the slot there projects a pin 90,

rors thus avoided. In order to release the shafts for the rotary motionin'the event of actual engaging portion of the bracket 37 is cut awayfor a short distance, Fig. 7, so that one rotation of the wheel ispermitted.

The carrying mechanism is arranged as follows: The toothed wheels 22 areprovided with sleeves 38, which slide on the shafts 19, Figs. 3, 5, and6. These sleeves are grooved to receive the end of springs 39, securedto'thebase of the case 1, Figs. 3, 5, whereby the sleeves are held inposition. From the toothed wheels 22 there project pins 40, which passthrough one of the teeth of the adjacent wheel 21. At the bottom of thecase 1, adjacent to the toothed wheels 21, stationary pins 41 arelocated. If in one of the apertures 4-a nine is visible, the pin 40projecting throughthe wheel 21 will lie im- On the further ast the,

, On the disk 28, behind the teeth 29 in the W111 ho d the latter indirection of rotation, there is a lever 42,

,the latter.

mounted on a shaft 42. This lever is nearly of the length of thecomplete radius and acts as feed device or tooth for the carryingoperation, Fi s. 7 and 9. Ordinarily this lever is depresse by a spring43, let into the disk, so that it does not project above the surface ofOne arm of the lever 42 is acted upon by the end of a double-armed lever44, the other extremity of which has a swelling 45 projecting below thedisk 28, Fig. I 9. Usually this swelling is in no we obstructed onrotation of the disk 28. ,f, however, through the rotation of a disk 20beyond 9 one of the sleeves 38 is caused to slide inward, this sleevewill come into the ath of the swelling 45. The latter will t us beraised by the sleeve and accordingly causes the free end of the lever 42to rise, so that the latter projects above the surfaceof the disk 28 asa tooth. On further rotation this end of the lever 42 will'en age withthe wheel 13, mounted on that shaft tion of rotation lies next to it,Fig. 9, and the wheel 13 will thus be turned through the space of onetooth. This movement will be transmitted to the corresponding wheel 20by means of the cor'iperating toothed wheels 9 and 21. breadth that itactuates the wheels 13 in whatever position they occupy, whether at 0 orother figure.

- Since carrying must be done only during rotation of the crank, thesleeve 38 must be returned to its initial position again on completionof the operation. For this purpose a stop 46 is provided close behindthe swelling 45 of the lever 44, which stop again forces the sleeveoutward, Figs. 7, 9, 10.

For the pur ose of indicating the number of rotations o the crank ineach denomination the following arrangement is provided. Between thefirst and second slots 7 or shafts 8 (counting in the direction ofrotation-of the crank) a short shaft 47, Figs. 4, 5, 8, is mounted inthe case 2, and on this shaft are mounted fast two toothed wheels 48 49,a stop-wheel 50, and a knurled wheel 51. The wheel 48 meshes with thewheel 26 of the shaft 24, which lies below for the time being. The wheel49 is so arranged relatively to the disk 28 that it engages the extremeouter tooth of the rows 29, Fig. 7, so that it advances through thespace of one tooth at each rotation of the disk. The rotation is transmitted to the wheel 26 by the wheel 48, and

I 1 thus to the corresponding figure-disk 25.

Since in each denomination only naught to nine rotations can be made, nocarrying mechanism is necessary for the figure-wheel 25. On adjustingthe case 2 for the purpose of making further calculations in anotherdenomination the toothed wheel 48 comes into engagement with theadjacent toothed wheel 26, so that by means of the figure-wheels 25,

8 which in the direc-,

The end of the lever 42 is of such tion, there will be indicated inaddition the number of terms of the sum, in multiplication themultiplier, in subtraction the number of subtrahends, and in divisionthe quotient.

In order to revent the wheels 48 and 49 turning more t an one tooth ateach rotation of the disk 28, the stop-wheel 50 is employed. In thiswheel there engages a detent 52, secured to the inner Wall of the case2. This detent is pressed against the wheel 50 by a pin 52 on the disk28, whereby the inertia of the wheels 48 49 is counteracted, Fig. 8. Awheel 53, Figs. 2, 5, 8, projecting through the case 2 and engaging withthe wheel 51, enables any desired figure to be brought before one of thefigure-apertures 5 by hand.

As Fig. 2 shows, in the machine illustrated six slots 7 with slides 14are employed, so that with this particular machine a factor of sixplaces can be set up. A product formed with these, however, may containmany more than six places. In the formation of the product carryingbeyond the sixth place is then naturally also necessary. From the sixthplace these carryings' are transmitted to the shaft 8, located, asalready stated, at a like distance a art to the shafts 8 Within the case2. On t e shaft 8 there is mounted a toothed wheel 18, which, in theposition shown in Figs. 4, 5, and 7, does not engage with any of he rowsof teeth 29 on the disk 28. The lever 42, however, is inwardlyprolonged, so that when the wheel 20 of the shaft 8 next preceding theshaft 8 has been turned from 9 to 0 it engages the wheel 18 and bycooperation of the wheels depending upon the nature of the calcula- IOC9 and 21 effects rotation of the correspond- The hammer 55 is secured toa hollow pin 57,

which turns on the pivot 56. This pin 57 is flattened at one part sothat a spring 58 may act upon it and maintain it in its position ofrest. 13, 14, notched at 60. This pin extends to the level of the disk28 and lies close against it. The lever 42, projecting laterally beyondthe disk 28, passes in its position of rest on rotation of the disk 28through the notch 60, so that it does not contact with the pin 59, Fig.13. If now it is required to carry from the figure-wheel correspondingto the shaft 8 to the next higher place, the sleeve 38, mounted on theshaft 19 below, is slid inward in the manner already described, and

On the hammer-arm is a pin 59, Figs. 4,

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the swelling 45 of the lever 44 lifts the lever the hammer to itsoriginal position.

The machine cannot be used at once for subtraction and division, asrotation in the reverse direction would be-necessary there.- for, andthis would involve a correspondingly different position of the parts. Bymeans of the mechanism now to be described, however, the machine whilerotating in the same direction' may also be employed for these othermethods of calculation, as'will be explained subsequently by means of anexam lple.

' he toothed wheel 18, mounted on the shaft 8, is connected by a sleevewith a disk 63, which can be slid by means of a slide 62, rojectingthrough a slot 61 in the case 2 and iiaving cheeks 64, which seize thewheel 63 on each side, Figs. 2, 4, and 5.

Adjacent to the slide there is marked on the case 2 on the side a.+ andon the other side a,- to indicate the nature of the calculation, whilethe slide itself is furnished with lateral pointers which can be ad-'usted so as to oint to one of the said signs.

. At the side of t e signs the kinds of calculation are still moreprecisel indicated.

On addition and multip ication the slide 62 occupies the osition shownin Figs. 2 and 5,

the wheel 18 ying beyond the province of the teeth 29 on the disk 28. Onsubtraction and division the slide 62 must be so slid that the wheel 18comes into the course of the nine inner teeth 29 of the disk 28, as willbe clear from'subsequent explanations. The slide 62- is also provlded onits side lying toward the center of the machine with an inclined surface65, Figs. 4, 13. On the upper ed e of this face there lies in theosition shown that 'for addition and multlp ication) the end 66'- of a'U-shaped bow .68, the central portion of which turns at 67. The otherend 69 of this bow engages a groove in the hollow pin 57 of the hammerFigs. 4, 5, 13. A spring 70', secured to the part 67, acts on the end 66of, the bow, and thus maintains it in contact with the. surface 65. Ifthe slide 62,- for the purose of subtraction or division, is moved intoits other position, the end 66 of the bow slides down the face 65, andthus the end 69 de- In order that the figures which have appeared in theholes 5 may. on completion of the calculatlon agaln be adjusted ta naut, the following device is provided: At the ottom of the case '1. thereare tworotary disks 71 72 of which the former is the larger. Both disksare at their periphery provided-with teeth 73, Figs. 6 and 11. The teethof the shown in Fig. 1.

ciently heavy to firmly hold the machinewhile the calculations arebeinggmade. To

shafts 19 and meshwith them ,while the teeth ,of the disk 72 can bebrought into engagement .with the toothed wheels 27 on the shafts 24.

'The wheels 22 and 27 have only nine teeth,

while in place of the tenth tooth there is a gap 7 4, Fig. 12. Thesegaps 74, when the naught is to be seen through the ,holes 4,-5,-are'directed downward toward the disks 71 72.

The case 1 has on its base two concentric slots 75 76, Figs. 3, 6, 11.The disks 71 72 likewise have slots 77 7.8. The disk 71 is provided withan arm '79, which projects through the'slot 75 and extends laterallybeyond the case 1. By means of this arm the disk can be turned in thedirection of the length of the slot 75. Similarly the disk 72 has an arm80, Figs. 5 and 6, pro'ecting through the slots 76 77. On the dis 72 issecured a spring 81 the'other end of which is fastened to the disk 71 insuch manner that .stand at other figures than the naughts, willengage'with the wheels 22 and Wlll rotate rotathese latter until the gas 74" come downward, whereupon the teet 73 will pass freely below thewheels, Fig. 12. a 1

The same procedure occurs-when the disk 72 is turned in the direction ofthe arrow,

Fi 6, by the arm"80. The same spring 81 wi 1 then be extended, as inthis case the disk 71 is held in its position of rest and on releasewill return the disk '7 2 to its initial position;

Here the teeth 73 engage with the wheels 27 when the figure-disks 25stand at otherfigures than naught and turn these wheels until the gaps74 come downward, when thenaught again ap ears in the aperture.

In or or that the free rotation of the toothedwheels 22 27 maynot beafiected during the process of calculating by the teeth 73 I of thedisks 71 72, these teeth are not arranged in continuit. on the disks 7172,'gaps' 82 e-'- ing provide which in the position of rest are locatedbelow the wheels 22 27. In order to render the machine handy for oeration, ahandle 83'may be screwed into t e case, as shown in Fig. 3.The machine hands are to be free the'calculator be mountedon a foot 84,having an inclined top, as

The foot 'must be sufiifacilitate elevation of the case? for purposes ofrotation and adjustment, the. may be can then be held in the left handand the calculating done with the right, or-if both provided with a pin85, raised by a lever with cam 86. The pin 85 presses against the shaft6 and lifts it and the case 2 on operation of the lever with cam 86,whereby the studs 30 on the rim of the case 1 are disengaged from thenotches 31 in the edge of the case 2. The foot is provided with a plate87, onto which the projecting portion 88 at the bottom of the casedfits. If now a calculation-- for example, a multiplication-is to beundertaken, the knobs 14 must be pushed along to adjust the pointers 15to the figures on the left of the slots, starting from the right withthe units. The knob in the slot 61 must be set to Addition andmultiplication. The case 2 must be adjusted relatively to the case 1, sothat the figure 1 stands before the arrow of the indicator 32-. In thehole 4, which lies to the left of this indicator, the units place of theresult of the calculation will thus e visible, and at the indicator,therefore,

-the reading of the result of the calculation commences.

The ring 89 is so adjusted that the apertures in it coincide with theholes 5. The multiplier can thus be seen, and it can be checked whetherthe proper number of rotations are made at each place.

Since between the first and second slots (in the direction of rotation)the device for indicating the number of rotations is located, theunits-figure will appear in the hole 5, located between these two slots.F or instance. if the number 463 is to be multiplied by 34 then in thefirst slot the pointer 15 of the knob 14 must be set at 3, in the nextslot at 6, and in the third slot at 4, Fig. 2. Owing to the knobs 14being slid along in this manner, the wheels 13 on the shafts 8 will bemoved so that they engage with those rows of teeth 29 -on the disk 28whose numbers of teeth correspond with the figures pointed to at 15.Thus on turning the disk 28 by means of the handle the wheel 13 of theunits place comes into engagement with three teeth 29, the wheel 13 ofthe tens place with six teeth, and the wheel 13 of the hundreds placewith four teeth. By means of the corresponding wheels 9 and 21, Fig. 3,these rotations are transmitted to the corresponding figure-disks 20 andthe corresponding figures will appear in the respective holes 4. On thenext rotation this process will be repeated. There will again be arotation of the figurewheels 20 corresponding to the figures inquestion. Thus in the case of the number under consideration there willappear in the units place 6, in the tens place 2, and in thehundredsplace 8. The figure-wheel 20 of the tens place will have now traveled beyond' the 9, whereby the carrying device will be adjusted so that thefigure-wheel 20 of the hundreds lace will turn not only through thenumber of teeth corresponding to the figuse set, but (by reason of theengagement of l the lever 42) also through the space of a fur stated.

ther tooth, so that now instead of the 8 a "9 will become visible. Thusthere will be read 926. Two more turns have now to be given, whereby theartial product 1852 for the units place of the multiplier is formed, Fi2. In the hole 6 between the figures 2 and 5 the units-number 4 of-themultiplier is visible, Fig. 2. The case 2 must now e so turnedrelatively to the case 1 -that instead of the figure 1 at theindicating-pin 32 the next figure on the periphery of the case 2that isto say, the figure comes opposite this pin. In this manner the slot ofthe units place comes to rest above the tens place of the partialproduct. The calculation for the tens place of the multiplier can now bemade. After three rotations the product desired is ascertained. Byrotation of the case 2 that portion of the rotations-counting mechanismlying within it is likewise advanced by one place. The tens-figure ofthe multiplier will now become visible here.

When the calculation is complete, it is only necessary to bring the ring89 into its other position, in which the perforations cover the holes 4,when the figures visible in the same give the result of the calculation.In this machine the reversing-gear usually employed in calculators fornegative calculations is dispensed with, as it would only tend to renderthe machine more complicated. Such calculations, therefore, are to bemade in such manner that the decadal completion of the subtrahend isintroduced into the adjusting device, so that the calculation can becompleted with the same crank rotation as for addition.

In order to render mental calculation unnecessary for the decimalcompletion, a row of figures in reversed. order is provided at theright-hand side of the slots 7, as already These figures give thedecadal com pletion of the corresponding figures on the opposite side ofthe slot. Thus at the first slot on the right are the figures 1, 2, 3opposite9, 8, 7 the completionor sum in each case being ten. At theother slots, opposite to9 8 7, there stand 2, &c., so that the figuresto be read in the slots in question are always completed to the nexthigher power of ten. For exam le, 9e+01=100, 731 +269=1,000, &c. hemethod of making negative calculations will be clear from the followingexample. From the number 231 4 (minuend) subtract the number 538,(subtrahend) After adjusting the pointers to the latter number in theright hand figure-columns the number 999,462 will be read in theleft-hand col- 462 is the decadal completion of 538. As the unusedhigher places have also to be set to the naughts on the right, thedecadal completion 1 ,000,000 results.

As already mentioned, adjacent to the slot I 31 of the highest placethere is the additional shaft 8, with an extra toothed wheel 18,

which is broughtto the level of the toothed wheels 13, adjusted tonaught by shifting of the slide 62. In this manner to the decadalcompletion 1,000,000 there is added another 9,000,000.-

lation is .Since, however, the tens-carrying mechanor right reading0001776 If in making additions or multiplications there is nocarryingperformed after the seventh place, the hammer 55 will be actuated by thelever-42 striking the pin 59, as already stated, whereby the gong 54will be rung.

By shifting of the slide 62 the hollow in 57, (which carries the hammer55,) and wit it the pin 59, will be raised, as already described, so tat the lever 42 can now pass unobstructed through the notch 60, Whereasin the other osition of the slide 62 it struck the pin 59. n this mannerthe tens-signal is also given in subtraction and division at the rightmoments' and shows when a unit is to be subtracted from the highestlace.

Having thus describe my invention, I claim as new- 1. In acalculating-machine in which the various places of the result aredisplayed in clrculanorder, in combination; an adjustin mechanism, anindicating mechanism, an an actuating mechanism for all places incommon, operating the indicating mechanism corresponding to 'the valuesset in the ad usting mechanism, substantially as described.

2. Ina calculating-machine in Which the various places of the result aredisplayed in circular order, in combination, an adjusting mechanism,comprisin a pluralit of shafts,

a gear mounted on eac shaft, an means for sliding the gearslongitudinally on their shafts; an actuating-diskfor all the gears incommon, presenting rows of teeth adapted Thus the actual calcusai tomesh with the said gears; means for rotating the disk; an indicatingmechanism; and means for transmitting the rotations of the said ears tothe indicating mechanism; substantlally as described. Y 3.- Inacalculating-machine inwhich the various places of the result are displaed in circular order, in combination, a plura ity of radial shafts; acar mounted on each shaft; a radially-slotte cover-plate slides workingin the slots, and sliding the said gears longitudinally on the shaftsbelow; an actuatingdisk for all the said gears in common, ,resentingconcentric rows of teeth adapte to mesh with thesaid gears; means forrotating the disk; an indicating mechanism; and means for transmittingthe -rotations of the said gears to the latter, substantially asdescribed.

4. In a calculating-machine in which the various places of the resultare displayed in circular order, in combination, a plurality of' radialshafts; a gear mounted on. each shaft; means for sliding the gearlongitudinally on its shaft; an actuating-disk for all the said' gearsin common, presenting concentric rows of teeth, adapted to mesh with thesaid gears; means for rotating the disk; a second series .of radialshafts; a figure-wheel mounted on each of these latter shafts; and meansfor transmitting the rotations of the first series of shafts to thesecond series; substantially as described.

. 5. In a calculating-machine in which the various places of the resultare displayed in circular order, in combination, an adjustin mechanism,comprising a plurality of radia shafts, a gear mounted on each shaft,and means for sliding the gear Iongitudinally on its shaft; a rotaryactuating mechanism for I05 all places in common, adapted to rotate thegears corresponding to the values set in the adjusting mechanism, a stopdevice mounted on each said shaft, and a stop de-' vice carried by theactuating mechanism, 110.

said stop devices coperating to stop the rotation of said shafts atintervals; an indicat- I ing mechanism; and means fortransmitting therotations of the said shafts to the indicating mechanism; substantiallyas described. 6. In a calculating-machine in which the various places ofthe result aredisplayed in circular order, in combination, a pluralityof radial'shafts, a car mounted on each shaft, and means for sfi rotarydisk actuating the said gears; a second series of radial shafts, afigure-wheel mounted on each of the latter, and means for transmittingthe rotations'of the said gears to the secondseries of shafts; atens-carrying I 25 tooth for all places in common, mounted onthe diskand ada tedtp e ngage yvith the said sliding gears; sli' ing membersenthe second seriesof shafts; means for actuating the same; and meansoperated by the said sliding'memr 0 ding the gear on its shaft; a I 20-ber, whereby the tenscarrying tooth is caused to engage with the slidinggears; substantially as described. i

7. In a calculating-machine in which the various places of. the resultare displayed in circular order, in combination, an adjusting mechanism,an indicating mechanism; a rotary actuating mechanism for all places incommon, operating the indicating mechanism corresponding to the valuesset in the adjusting mechanism; and means for counting the rotations ofthe actuating mechanism, comprising a radial shaft, a gear on the samemeshing with a tooth of the actuating mechanism, .a plurality of radialshafts, a figure-wheel mounted on each of these shafts, and means fortransmitting the rotations of the said gear to one of the said latterradial shafts; substantially as described.

various places of the result are displayed in circular order, incombination, an adjusting mechanism, a plurality of shafts, afigurewheel on each shaft, means for operating these wheelscorresponding to the values set in the adjusting mechanism, a mutilatedmechanism, an indicating mechanism, means for operating the lattervcorresponding to the values set in the adjusting mechanism, arotations-counting mechanism, a plurality of shafts and a figure-wheelon each shaft, a mutilated ear on each shaft, a disk presentingcircularly-disposed groups of teeth, adapted to mesh with the gears, andmeans for rotating the disk, substantially as described.

10. In a calculating-machine in which the various places of the resultare displayed in circular order, in combination, an adjusting mechanism;an indicating mechanism and a rotations-counting mechanism and means foroperating these two latter mechanisms, said indicating and countingmechanisms each possessing an equal number of figurewheels circularlydisposed and alternating with each other; a case containing the saidmechanisms, perforated at the figure-wheels; a perforated ring movingover the perforations in the, case, and means for rotating the ringthrough the distance between two adjacent case perforations;substantially as described.

11. In a calculating-machine in which the various places of the resultare displayed in circular order, in combination, a slotted casecomprising two parts one of which can be rotated-relatively to theother; a plurality of radial shafts 8' in one part of the case, a gear13 on each shaft, located below a case-slot, a

8. In a calculating-machine in which thetransferring this slide workingin each slot and sliding one of said gears on its shaft; a plurality ofradial shafts 19 in the other art of the case, a figure-wheel 20 on eachatter shaft, a central shaft 6; a disk mounted on said shaft, presentingconcentric rows of teeth meshing with the gears 13 on the first saidshafts 8;

gears for transmitting the rotations of the first said shafts 8 to thesecond said shafts 19; a carrying-tooth mounted on the disk; meansfor-causing the said tooth to mesh with the first said gears 13 arotations-counting mechanism actuated by the said disk and possessing aplurality of radial shafts 24located between-the second said shafts 1.9,a figure-wheel 2.5 on each of the counting-mechanism shafts 24; andmeans for returning the said figure-wheels 20 and 25 to the 'ZBIOPOSI-tion; substantially as described.

12. Ina calculating-machine in which th various places of the result aredisplayed in circular order, in combination, a plurality of shafts, agear on each shaft and means for sliding the gears longitudinally ontheir shafts; a rotary disk gears; a second series of shafts, afigurewheel on each of the same, and means for transmitting therotations of the said gears to the figure-wheels; a carrying-toothcarried by the said disk; means for causing the tooth to engage with thesaid gears; an audible signal located in the case, and means actuated bythe carryingtooth for operating the same, substantially as describer 13.In a calculatingrnachine, in combination, an adjusting mechanismpresenting for each place a group of.figures, and a second group offigures located adjacent to the first group and so disposed that thefigures of the second group are completed by the corresponding figuresof the first group through all places seriatim to the power of 10corresponding to the number of the places; an indicating mechanism;means for transferring the completion value introduced by the secondgroup to the said indicating mechanism; and means of enabling correctindication of the result thus in excess to the extent of thecorresponding power of 10, substantially as described.

14. In a calculating-machine, in combination, an adjusting mechanismpresenting for each place a group of figures and a second group offigures located adjacent to the first group and so'disposed that thefigures of the 'second group are completed by the corres onding figuresof thefirst group through a 1 places seriatim to the power of 10 corresonding to the number of the places; an in icating mechanism; acompleting mechanism, located adjacent to the highest place of theadjusting mechanism whereby the value 9 can be introduced; means forentire value of the said indicating mechanism; and means for. throwingthe said completing mechanism into and out of operation ;substantiallyas described.

15. In a calculating-machine, in combinatlon, an adjusting mechanism,presenting for each place a group of figures and a second group offigures located adjacent to the first group and so disposed that thefigures of the second group are completed by the corres onding figuresof the first group through a 1 places mam to the power of corres ondingto the number of the'places; an

' in icating mechanism; a complet ng mechanism located adjacent to thehighest place of the adjusting mechanism whereby the value 9 can beintroduced; means for transferrin thisentire value to the saidindieating mec anism; means for throwing the having ra said completingmechanism into andout of o eration; a carrying mechanism for the 20 paces of the indicating mechanism correspondlng in number to those of theadjusting mechanism; an audible signal; means for acto the power 0 10correspondingto the number of the places; slides working in thecover-plate slots and sliding the gears on their shafts, a com letinmechanism located adjacent to the big est p ace of the adjustingmechanism whereby the value '9 can be introduced, there being at thesaid completing mechanism'a shaft a gear mounted thereon and means forsllding the gear on. its shaft; an indicating mechanism, means forrotating the first said gears and the gear at the completing mechanism,corresponding to the values introduced and means for transmitting therotations of the said gears to the indicating mechanism; a tens-carryingmechanism for the places of the indicating mechanism mechanlsm;substantially as describe Witnesses:

, HENRY HASPER, WOLDEMAR anism corresponding in number to those ofdisenga ing the said signal-operating mechy actuating the saidcompleting 17. In a calculating-machine in which the variousplaces ofthe result are displayed in circular order, a lurality of radialshafts 8a gear 13 on eac shaft, a cover-plate having radial slots 7 andpresenting at each slot a group of figures 0-9 and a second group offigures adjacent to the first and so disposed that the res of the secondgroup are comleted by the. corres ondingfigures of the st group througha 1 places seriat'zm to the power of 10 corresponding to the number ofthe laces, a slide 14 working in each cover-p ate slot 7 and sliding agear 13 on its shaft 8; a supplementary shaft 8' located adjacent to thehighest place of the adjusting mechanism, a gear 18 on this shaft 8above which the cover-plate has a'slot 61, a slide 62 having an inclinedface, working in this slot 61 and sliding the last said gear 18 on itsshaft; an actuating-disk 28, having concentric rows of teeth' adapted toengage-with and actuate on the said' gears 13, 18; means for rotatingthe disk;-

an indicating mechanism and means for transmitting the rotations of thesaid gears 13, 18 to the same; a carrying-tooth 42 onthe actuating-disk28 and means for causing this tooth to mesh with the said gears 13, 18;a

gong; an axis, a spring-c'tntrolled bell-hammer turning on and s idi gon the axis and having a notched projection lying in the path of thesaid carrying-tooth 42 but ordinarily allowin the latter to pass throughthe notch; and a ow hin ed to the case'of the machine, one end 0whichrests on the inclinedfaced slid'e62 while the other end engageswith the boss 57 of the. said bell-hammer; substantially as described.In witness whereof I have hereunto set my hand in the presence of twowitnesses.

' c RrsrEL HAMANN.

